EP1017051A3 - Appareil et méthode de commande de gain, appareil et méthode de reproduction d'information, et appareil et méthode d'enregistrement d'information - Google Patents

Appareil et méthode de commande de gain, appareil et méthode de reproduction d'information, et appareil et méthode d'enregistrement d'information Download PDF

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Publication number
EP1017051A3
EP1017051A3 EP99123014A EP99123014A EP1017051A3 EP 1017051 A3 EP1017051 A3 EP 1017051A3 EP 99123014 A EP99123014 A EP 99123014A EP 99123014 A EP99123014 A EP 99123014A EP 1017051 A3 EP1017051 A3 EP 1017051A3
Authority
EP
European Patent Office
Prior art keywords
gain
roughly adjusting
adjusting device
basis
roughly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP99123014A
Other languages
German (de)
English (en)
Other versions
EP1017051B1 (fr
EP1017051A2 (fr
Inventor
Masato c/o Pioneer Corp. Kawagoe Works Sakamoto
Katsunori c/o Pioneer Corp Kawagoe Wrks Tamamura
Kazuhiko c/o Pioneer Corp. Kawagoe Works Oogami
Mayumi c/o Pioneer Corp Kawagoe Works Takahashi
Norikazu C/O Tohoku Pioneer Corp. Tada
Atsushi C/O Tohoku Pioneer Corp. Kusaka
Akihito C/O Tohoku Pioneer Corp. Fujiwara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tohoku Pioneer Corp
Pioneer Corp
Original Assignee
Tohoku Pioneer Corp
Pioneer Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tohoku Pioneer Corp, Pioneer Corp filed Critical Tohoku Pioneer Corp
Publication of EP1017051A2 publication Critical patent/EP1017051A2/fr
Publication of EP1017051A3 publication Critical patent/EP1017051A3/fr
Application granted granted Critical
Publication of EP1017051B1 publication Critical patent/EP1017051B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0045—Recording
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/005—Reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0941—Methods and circuits for servo gain or phase compensation during operation
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0945—Methods for initialising servos, start-up sequences

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Control Of Amplification And Gain Control (AREA)
EP99123014A 1998-11-19 1999-11-19 Appareil et méthode de commande de gain, appareil et méthode de reproduction d'information, et appareil et méthode d'enregistrement d'information Expired - Lifetime EP1017051B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP33002298 1998-11-19
JP33002298A JP3819165B2 (ja) 1998-11-19 1998-11-19 利得制御装置及び方法、情報再生装置及び方法並びに情報記録装置及び方法

Publications (3)

Publication Number Publication Date
EP1017051A2 EP1017051A2 (fr) 2000-07-05
EP1017051A3 true EP1017051A3 (fr) 2002-02-06
EP1017051B1 EP1017051B1 (fr) 2006-08-16

Family

ID=18227910

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99123014A Expired - Lifetime EP1017051B1 (fr) 1998-11-19 1999-11-19 Appareil et méthode de commande de gain, appareil et méthode de reproduction d'information, et appareil et méthode d'enregistrement d'information

Country Status (4)

Country Link
US (1) US6606284B1 (fr)
EP (1) EP1017051B1 (fr)
JP (1) JP3819165B2 (fr)
DE (1) DE69932797T2 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10032034A1 (de) * 2000-07-05 2002-01-17 Thomson Brandt Gmbh Verfahren zum schnellen Herstellen der Lese- und/oder Scshreibbereitschaft eines Geräts zum Lesen und/oder Beschreiben eines optischen Aufzeichnungsträgers sowie entsprechend ausgestaltetes Gerät
KR100421047B1 (ko) * 2001-07-18 2004-03-04 삼성전자주식회사 광 구동기에 있어서 광량 검출장치 및 방법
JP4109919B2 (ja) * 2002-07-19 2008-07-02 キヤノン株式会社 光学的情報再生装置
JP2004220683A (ja) * 2003-01-14 2004-08-05 Funai Electric Co Ltd 光ディスク再生装置と同装置に適用される光検出信号のレベル調整方法
US7894312B2 (en) * 2005-04-25 2011-02-22 Panasonic Corporation Automatic gain control circuit and signal reproducing device
KR100664491B1 (ko) * 2006-02-16 2007-01-04 삼성전자주식회사 광디스크 플레이어의 자동 조정 장치 및 그 방법
US8687472B1 (en) * 2011-11-08 2014-04-01 Marvell International Ltd. Method and apparatus for determining the cleanliness of a lens in an optical disc drive
US10316395B2 (en) 2012-10-09 2019-06-11 The Esab Group, Inc. Low-manganese gas-shielded flux cored welding electrodes

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59140673A (ja) * 1983-01-31 1984-08-13 Pioneer Electronic Corp トラツキングサ−ボ装置
JPS6132225A (ja) * 1984-07-23 1986-02-14 Hitachi Ltd 光方式記録再生装置
EP0247829A1 (fr) * 1986-05-26 1987-12-02 Pioneer Electronic Corporation Méthode et appareil pour corriger le gain de rétroaction d'une servo-boucle à réglage fin
JPS63205863A (ja) * 1987-02-20 1988-08-25 Rohm Co Ltd デイスク再生用サ−ボ装置のサ−ボゲイン最適化方法
EP0388519A2 (fr) * 1989-03-20 1990-09-26 Pioneer Electronic Corporation Méthode pour régler le gain de boucle de boucles d'asservissement dans un lecteur de disque
EP0388555A2 (fr) * 1989-03-20 1990-09-26 Pioneer Electronic Corporation Méthode pour la régulation de l'amplification d'un circuit servo pour suivi de piste
US4967404A (en) * 1988-12-05 1990-10-30 Eastman Kodak Company Focus/tracking servo automatic gain control for optical recording
EP0446412A2 (fr) * 1990-03-13 1991-09-18 Pioneer Electronic Corporation Appareil d'asservissement pour lecteur de disque optique
JPH05165528A (ja) * 1991-12-17 1993-07-02 Matsushita Electric Ind Co Ltd 位置決め制御方法および位置決め制御装置
JPH11273285A (ja) * 1998-03-19 1999-10-08 Hitachi Ltd ディスク装置及びその制御方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5761164A (en) * 1993-11-15 1998-06-02 Pioneer Electronic Corporation Gain control device for servo control
JP2000165167A (ja) * 1998-11-20 2000-06-16 Pioneer Electronic Corp 利得制御装置及び方法、情報再生装置及び方法並びに情報記録装置及び方法

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59140673A (ja) * 1983-01-31 1984-08-13 Pioneer Electronic Corp トラツキングサ−ボ装置
JPS6132225A (ja) * 1984-07-23 1986-02-14 Hitachi Ltd 光方式記録再生装置
EP0247829A1 (fr) * 1986-05-26 1987-12-02 Pioneer Electronic Corporation Méthode et appareil pour corriger le gain de rétroaction d'une servo-boucle à réglage fin
JPS63205863A (ja) * 1987-02-20 1988-08-25 Rohm Co Ltd デイスク再生用サ−ボ装置のサ−ボゲイン最適化方法
US4967404A (en) * 1988-12-05 1990-10-30 Eastman Kodak Company Focus/tracking servo automatic gain control for optical recording
EP0388519A2 (fr) * 1989-03-20 1990-09-26 Pioneer Electronic Corporation Méthode pour régler le gain de boucle de boucles d'asservissement dans un lecteur de disque
EP0388555A2 (fr) * 1989-03-20 1990-09-26 Pioneer Electronic Corporation Méthode pour la régulation de l'amplification d'un circuit servo pour suivi de piste
EP0446412A2 (fr) * 1990-03-13 1991-09-18 Pioneer Electronic Corporation Appareil d'asservissement pour lecteur de disque optique
JPH05165528A (ja) * 1991-12-17 1993-07-02 Matsushita Electric Ind Co Ltd 位置決め制御方法および位置決め制御装置
JPH11273285A (ja) * 1998-03-19 1999-10-08 Hitachi Ltd ディスク装置及びその制御方法

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 008, no. 275 (P - 321) 15 December 1984 (1984-12-15) *
PATENT ABSTRACTS OF JAPAN vol. 010, no. 188 (P - 473) 3 July 1986 (1986-07-03) *
PATENT ABSTRACTS OF JAPAN vol. 012, no. 497 (P - 806) 26 December 1988 (1988-12-26) *
PATENT ABSTRACTS OF JAPAN vol. 017, no. 573 (P - 1630) 19 October 1993 (1993-10-19) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 01 31 January 2000 (2000-01-31) *

Also Published As

Publication number Publication date
US6606284B1 (en) 2003-08-12
EP1017051B1 (fr) 2006-08-16
EP1017051A2 (fr) 2000-07-05
DE69932797T2 (de) 2007-09-06
JP3819165B2 (ja) 2006-09-06
JP2000156618A (ja) 2000-06-06
DE69932797D1 (de) 2006-09-28

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